Galaxy S10 vs Galaxy S21 5G

When considering the long-term usability of these devices, their respective release dates and software support cycles are key factors.

• Software Updates: The Galaxy S10 received its last major Android operating system upgrade with Android 12 in January 2022, and its security updates concluded around April 2023 for most models. In contrast, the Galaxy S21 5G, launched with Android 11, is expected to receive its final major OS update with Android 15 around May 2025 and will continue to receive security updates for five years from its release.
• Physical Durability: Both models feature an IP68 rating for dust and water resistance, indicating protection against immersion in water. The Galaxy S10 utilizes Gorilla Glass 6 for its display, while the base Galaxy S21 5G model features a plastic back, which some users find less premium than glass, though it can offer different impact resistance properties.
• Expected Lifespan: Given the S21 5G's more recent release and extended software support, it offers a longer practical lifespan for users who prioritize receiving the latest Android features and security patches. The S10, while still functional, will no longer receive official software advancements.

The performance of a smartphone is largely determined by its internal processing power and memory, impacting how smoothly applications run and how efficiently tasks are handled.

• Processing Power: The Galaxy S21 5G features a newer generation processor compared to the Galaxy S10. This translates to more responsive performance for demanding applications, faster loading times, and improved efficiency for multitasking. Users engaging in intensive mobile gaming or heavy video editing will likely notice a more fluid experience on the S21 5G.
• Storage and RAM: Both devices typically come with 8GB of RAM, allowing for competent multitasking. The Galaxy S10 offers expandable storage via a microSD card slot, a feature absent in the Galaxy S21 5G, which relies solely on its internal storage options of 128GB or 256GB.
• Battery Behavior: The Galaxy S21 5G is equipped with a 4000 mAh battery, a larger capacity than the 3400 mAh battery found in the Galaxy S10. This generally results in longer usage times on a single charge for the S21 5G, though factors like screen refresh rate and 5G connectivity can influence real-world battery drain.

The visual experience is a significant aspect of smartphone usage, and both devices offer high-quality displays with distinct characteristics.

• Display Technology and Resolution: Both the Galaxy S10 and S21 5G feature Dynamic AMOLED displays, known for deep blacks and vibrant colors. The S10 boasts a higher resolution display (3040x1440 pixels) resulting in a higher pixel density (550 ppi) on its 6.1-inch screen. The S21 5G has a 6.2-inch display with a resolution of 2400x1080 pixels (421 ppi).
• Refresh Rate and Smoothness: A key difference is the refresh rate. The Galaxy S10 has a standard 60Hz refresh rate, while the Galaxy S21 5G features an adaptive 120Hz refresh rate. This higher refresh rate on the S21 5G provides a noticeably smoother scrolling experience and more fluid animations, which can enhance the perception of responsiveness.
• Brightness and Viewing Experience: Both displays offer excellent brightness levels for outdoor visibility. The S10's higher resolution may appeal to users who prioritize maximum sharpness for detailed content, while the S21 5G's smoother motion is beneficial for general navigation and media consumption.

Both smartphones offer versatile camera systems designed to capture a variety of moments, though the newer model incorporates advancements in processing and sensor technology.

• Rear Camera System: The Galaxy S10 features a triple-camera setup with a 12MP main, 12MP telephoto (2x optical zoom), and 16MP ultrawide lens. The Galaxy S21 5G also has a triple-camera system, including a 12MP main, a 64MP telephoto (hybrid 3x zoom), and a 12MP ultrawide lens. The S21 5G's telephoto lens offers greater zoom capabilities and higher resolution for cropped images.
• Photography Performance: The S21 5G generally offers improved low-light performance and enhanced image processing, leading to more detailed and balanced photos in various conditions. Both devices are capable of capturing high-quality photos in good lighting.
• Video Recording and Audio: The S21 5G supports 8K video recording at 30fps, while the S10 supports 4K video. For audio, the Galaxy S10 includes a 3.5mm headphone jack, a feature that is absent on the Galaxy S21 5G. Both devices offer stereo speakers for media playback.

Beyond core features, several practical elements contribute to the overall user experience and daily convenience of these smartphones.

• Connectivity: A significant distinction is network capability. The Galaxy S10 supports 4G LTE and Wi-Fi 6, while the Galaxy S21 5G offers next-generation 5G connectivity and Wi-Fi 6E, providing faster mobile data speeds and improved wireless network performance where available. Both support Bluetooth 5.0.
• Ports and Biometrics: The Galaxy S10 retains a 3.5mm headphone jack and a USB-C port. The Galaxy S21 5G exclusively uses a USB-C port, omitting the headphone jack. Both devices feature an in-display ultrasonic fingerprint sensor for secure unlocking.
• Design and Handling: The Galaxy S10 weighs 157g and has dimensions of 149.9 x 70.4 x 7.8mm. The Galaxy S21 5G is slightly heavier at 169g and measures 151.7 x 71.2 x 7.9mm. The S10 features a glass back, while the base S21 5G model has a plastic back, which can affect the in-hand feel.